APA aipamena

Arley-Alvarado, A. G., & Vasconcelos-Vásquez, K. L. (2016). The Certificate of Sustainable Tourism an opportunity for Carbon Neutrality Standard INTE -12-01-06: 2011.

Chicago Style aipamena

Arley-Alvarado, Alonso Gerardo, y Kattia Lizett Vasconcelos-Vásquez. The Certificate of Sustainable Tourism an Opportunity for Carbon Neutrality Standard INTE -12-01-06: 2011. 2016.

MLA aipamena

Arley-Alvarado, Alonso Gerardo, y Kattia Lizett Vasconcelos-Vásquez. The Certificate of Sustainable Tourism an Opportunity for Carbon Neutrality Standard INTE -12-01-06: 2011. 2016.